.clearfix:after{
    content: "";
    display: block;
    height:0;
    clear: both;
}
/* 清除盒子与盒子之间进行浮动的情况 */
.clear{
    clear:both;
}
.fl{
    float: left;
}
.fr{
    float: right;
}
.container{
    width: 1200px;
    margin:0 auto;
}
a{
    text-decoration: none;
}
dd{
    margin: 0;
    padding: 0;
}
/* 头部通用样式 */

.tcenter{
    text-align: center;
}
.tcright{
    text-align: right;
}
/* 定位 */
.ptr{
    position: relative;
}
.pta{
    position:absolute;
}
.bsb{
    box-sizing: border-box;
}
/* 间距 */
.mb20{
    margin-bottom: 20px;
}
.mg20{
    margin-top: 20px;
}
.mg30{
    margin-top: 30px;
}
.mr20{
    margin-right: 20px;
}
.ml30{
    margin-left: 30px;
}
.mr30{
    margin-right: 30px;
}
/* 字体大小 */
.fwb{
    font-weight: bold;
}
.fz26{
    font-size: 26px;
}
.fz18{
    font-size: 18px;
}
.fz16{
    font-size: 16px;
}
.fz14{
    font-size: 14px;
}
.fz12{
    font-size: 12px;
}
.fz40{
    font-size: 40px;
}
/* 颜色 */
.fcff{
    color: #ffffff;
}
.fc18{
    color: #181818;
}
.fc55{
    color:#555555;
}
.fc99{
    color:#999;
}
.fc66{
    color:#666666;
}
.fcef{
    color: #1271ef;
}
.fc00{
    color:#00bdff;
}
.fc47{
    color:#f8b047;
}
/* 背景颜色 */
.bgc18{
    background-color: #f8f9fb;
}
.bgcf{
    background-color: #fff;
}
.title p{
    margin:15px 0px 30px;
}
.lh25{
    line-height: 25px;
}

.over{
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 4;
    text-overflow: ellipsis;
}

/* 头部样式 */
header{
    width: 100%;
    /* background: url(../imgs/bottombg.png) no-repeat; */
    height: 65px;
    line-height:65px;
    border-bottom: 1px solid #aec7ec;
    top: 0;
    left: 0;
    z-index: 666;
}
header .logo{
    width: 230px;
    height: 30px;
}
header a{
    color: #ffffff;
}
header .nav{
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}
header .nav li.active a{
    border-bottom: 2px solid #ffffff;
    padding-bottom: 20px;
    font-size: 16px;
}
header .right-box a{
    height: 26px;
    padding:5px 10px;
    border:1px solid #aac6ef;
    border-radius: 26px;;
}
header .right-box .reg{
    background-color:#ed510a ;
    border:1px solid #ed510a;
}

/* 页脚部分 */
footer>div div:first-child dl{
    margin-right: 90px;
    float: left;
}
footer>div div:first-child dt{
font-size: 14px;
color: #181818;
margin-bottom:30px;
}
footer>div div:first-child dd{
    font-size: 12px;
    color:#666666;
    line-height: 25px;
}
footer>div div:last-child img{
width: 110px;
height: 110px;
}
footer div:last-child img{
width: 18px;
height: 20px;
margin-right: 10px;
}
footer>div:last-child{
    margin:45px 0 25px;
}
/* 广告部分的样式 */
#advert{
    background:#1271ef url(../imgs/login-register-bg.svg) no-repeat center;
    height: 180px;
    padding: 40px 0;
    margin: 82px 0 40px;
    font-size: 28px;
}
#advert .server{
    width: 130px;
    height: 40px;
    border: 1px solid #ffffff;
    padding: 15px 38px;
    margin:30px auto;
}
#advert .server a{
    color: #ffffff;
}

/* 侧边栏的联系我们的样式 */
#relation{
    position:fixed;
    right: 0;
    bottom:140px;
    display: none;

}
#relation ul img{
    width: 22px;
    height: 26px;
}
#relation ul li{
    width: 80px;
    height: 80px;
    cursor: pointer;
}
#relation ul li:first-child{
    background:#12b7f5 url(../imgs/telephone.svg) no-repeat center top 16px;
    margin-bottom: 10px;
}
#relation ul li:nth-child(2){
    background:#12b7f5 url(../imgs/icon-qq-white-small.png) no-repeat center top 16px;
}
#relation ul li:last-child{
    margin-top:2px;
    background:#12b7f5 url(../imgs/im-bubble-pc-white.png) no-repeat center top 16px;
}
#relation ul a{
    color: #fff;
line-height: 112px;
}
#relation .top{
    width: 80px;
    height:80px;
    background:transparent url(../imgs/返回顶部.png) no-repeat center top 10px;
    margin-top: 60px;
    line-height:140px;
    cursor: pointer;
    user-select: none;
}
#tel span{
    display: inline-block;
    width: 0;
    border: 10px solid #fff;
    border-color:transparent;
    border-left-color:#fff;
    position:absolute;
    right: -20px;
    top: 15px;
}
#tel{
    line-height: 50px;
    width: 160px;
    background-color: #fff;
    color:#00bdff;
    box-shadow: 2px 2px 10px 2px rgb(0,0,0,.5);
    border-radius: 2px;
    z-index: 20;
    position: absolute;
    left: -172px;
    top: 16px;
    display: none;
}
#relation ul li:first-child:hover #tel{
    display: block;
}